Drain blockages in Greenwich: the usual causes
Greenwich combines Georgian and early Victorian terraces near the town centre, larger detached and semi-detached homes towards Blackheath, and newer riverside flats along the Thames. Older properties frequently retain their original below-ground clay pipework.
In shared buildings a blockage is rarely confined to one flat. Once the common drain is restricted, several properties feel it at once, which is why identifying the exact location matters before any work is agreed.
The riverside is tidal and parts of the borough fall steeply from the heath, so surface water arrives fast and finds any weak point in a drain run. Older clay joints, root ingress from mature street trees and displaced sections are the faults we see most often.
How we deal with drain blockages in Greenwich
The priority is getting the property usable again, then establishing whether there is an underlying fault.
- Make the property safe and stop further discharge into the blocked run
- Locate the blockage by working through the chambers along the line
- Clear it with jetting or mechanical clearance, whichever suits the cause
- Prove the flow by running water through every affected fitting
- Report what caused it, and whether the pipe needs further attention
Conservation areas and cobbled or stone-set frontages need care when covers are lifted. We work around that rather than forcing access, and we reinstate what we move.
Signs it needs attention now
- Waste water rising from a manhole or gully outside
- Nothing draining anywhere in the property
- Foul water backing up into a bath, shower or ground-floor toilet
- A strong drain smell inside the building
- Water pooling around an inspection cover after use, not just after rain
What we see most often in Greenwich
- Root ingress from mature street trees into older clay pipework
- Displaced joints caused by ground movement on the slopes towards the heath
- Surface water arriving faster than gullies can take it after heavy rain
In Greenwich we work for owners of period houses, for buyers commissioning a survey before completion, and for the managed blocks along the riverside. Conservation-area properties need a careful approach, and we plan for that rather than improvising on the day.
Equipment and what happens afterwards
The vans are stocked for emergencies: jetting at a range of pressures, mechanical clearance, a camera and locator, and the protective equipment needed to work safely around foul water. Carrying all of it means the engineer who arrives can normally finish the job rather than book a return visit for the right kit.
We prove the flow before we leave, running water through every affected fitting rather than relying on the chamber clearing. We tell you what caused it and whether the pipe itself needs attention, and if the fault sits on a shared drain or a public sewer we say so plainly, because that is not a bill you should be picking up.
What drain unblocking cost in Greenwich
Drain unblocking starts at a fixed £120 plus VAT, and there is never a call-out charge. We confirm the figure before any work starts, so nothing changes once the engineer is on site in Greenwich.
Areas we cover around Greenwich
Our Greenwich work covers SE10, SE3, SE7 and SE18 and the rest of Royal Borough of Greenwich. Engineers are usually 60 to 90 minutes away, and because we also cover Southwark, Tower Hamlets, Peckham and Dulwich, a job that crosses a boundary does not need a second contractor.